Trimming-machine.



L. M. BROWN & A. A. MACLEOD.

M. E. BROWN, ADMINISTRATRIX OF L- M. BROWN, DECD.

TRIMMING MACHINE.

APPLICATION FILED NOV-(LX917.

1,295,964. Patented Mar. 4, 1919.

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TRIMMING MACHINE.

APPLICATION mu) NOV-.6, 1912.

1,295,964. Patented Mar. 4,1919.

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J26 Ll TRIMMIN Gr-MACHIN E.

Specification of Letters Patent.

Patented lVIar. 4, 1919.

Original application-filed June 23, 1915, Serial No. 35,816. Divided and this application filed November 6,

1 1917. Serial No.200,617.

To all whom it may concern:

Be it known that LoUIs M. BROWN, deceased, late of Beverly, in the county of Essex and State of Massachusetts, and AL- BERT A. MAoLEoD, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, invented certain Improvements in Trimming-Machines, of which the following description, in connection with the accomypanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to trimming ma chines, the illustrated machine being substantially as set forth in our application Ser. No. 35,816, filed June 23, 1915, entitled work supports for shoe machines, of which this application is a division.

The channeling operation often causes an elongation of the shoe insole uponwhich it is performed. This may be due to the presence of inferior material in the insole, or to the fact that it is channeled in temper. It has become the practice to mount an insole on its last with the toe tips of the insole and last in correspondence, and to trim off the projecting end of the insole around the heel.

In addition to supporting the insole generally on the last it has been found advisable to provide a support for it near the point where it is engaged by the cutter. Insoles are frequently made of such inferior ma terial that unless this is done, the pressure of the cutter will Warp or deflect the insole to such an extent as to cause uneven or ragged trimming. The use of a presser member engaging the bottom face of the insole close to the point of operation of the cutter has been proposed as a solution of this difliculty.

ile this arrangement has proved to be satisfactory in operation under the usual working conditions, it is 'not'always sufficiently effective where the insole in insecurely tacked-at the heel seat or where there is no heel seat tack. This arises largely from the fact that during the trimming operation there is lateral frictional engage ment between the p-resser member and the insole which tends to neutralize to some extent the clampin effect of the "presser memher.

It is a principal object of our invention to cure the described difliculty by providing a novel organization of operating and Work holding instrumentalities, important feature, means for supporting the side of the insole which is next to the bottom of the last, and providing in addition a device extending across the edge of the insole arran ed to hold it against the supporting means, close to the point of operation of the cutter. The extreme edge of the insole is thus supported between two members. and the tendency to distort the edge is consequently much less than in the case of heretofore known constructions.

In accordance with another important feature of the invention, the device for holding the insole edge against the holding means rotates rapidly, an advantage resulting from this arrangement being that the actual friction between the insole and this device is decreased by the rotation, as will be shown. In the mechanism shown in the drawings, this device is in the form of a spider with its arms extending between the cutter teeth, thus making a compact and very effective organization.

Another very important result is obtained by rotating the holding means. In machines of this type as heretofore constructed the edge pressing member has been stationary and mounted in a slide parallel to the periphery of the frusto-conical cutter in order to maintain its relative position irrespective of the thickness of the insole. The insertion of the work in the machine required the displacement of this member by Wedging the insole between it and the memher which extends between the insole and the last, whichwas diflicult because of the flexibility and loose texture of the insole. The rotating member produces much less friction than the stationary one as the insole is pushed under it, and rides up on the insole without much tendency to drag and crumple it. In accordance with another important feature of the invention, the insole holding member is mounted formovement parallel to the axis of rotation of the cutter. This structure facilitates the pushing of the holding member aside by the insole as the work is inserted as compared with prior constructions, in which the lateral thrust of the work must be resolved at an angle and only a part of it is effective in moving the holding members.

The combination of such a member crossing the edge of the insole with a frustoconical cutter, we regard as an important one. This cutter produces the beveled edge which is desirable at the heel, and the holding member will be always in proper relation to the cutter in any position of restraction corresponding to an insole of any thickness. I It is the usual practice to attach an insole to its last by means of a plurality of tacks driven along the middle of the forepart and shank and by a single tack at the heel seat driven into the last through an opening in the metal anvil plate with which the heel end of a last is usually provided. The tacks along the forepart and shank may be driven at random, but the heel seat tack must enter the comparatively small opening in the anvil plate. As a result the material of the last where the heel seat tack is driven is avorn away with con'iparative rapidity so that finally a tack driven at this point fails to hold the heel portion of the insole securely. There are in use, moreover, in the manufacture of some classes of shoes, lasts in which no opening is provided in the metal anvil plate for the reception of a tack and in which it is not desirable to provide such an opening lest the strength of the plate be weakened unduly.

Other important features of the invention reside in an organization such that the action of the tangential pull of the cutter in crumpling the insole near the point of out and in displacing the entire insole on the last is resisted by a supporting instrumentality comprising means supporting the insole at the edge to prevent deformation of the insole, and means engaging the insole remote from the edge to hold itfirmly against the tendency of the cutter todisplace it as a whole.

These and other features of the invention, com-prising various arrangements and combinations of parts, will be best understood from the following description of a preferred embodiment of the invention, selected for purposes of illustration and shown in the drawings in which,

Figure 1 is an end view in elevation of an insole heel seat trimming machine embodying the present invention;

Fig. 2 is a perspective view of the novel work positioning means as viewed diagonally from the left with reference to Fig.1;

Fig. 3 is a view in section through the cutter and adjacent portions of the illustrated machine showing the manner in which the work is presented for treatment;

Fig. 1 shows in elevation, and partly in section, a portion of the mechanism including the connections between the last support and the insole clamping member, showing the parts in a different position from that illustrated in Fig. 2 and withportions of the mechanism omitted for the sake of clearness in the illustration;

Fig. 5 is a plan view, partly in section, of the mechanism for controlling the clamping of the insole, showing the parts in a clifferent position from that illustrated in Fig. 2; 1

Fig. 6 is a view partly in vertical section in the plane of Fig. 1, illustrating in detail a part of the connection between the upright arm of the work support and the work supporting head, and

Fig. 7 is a front elevation of the lower portion of the work supporting means.

The machine illustrated in Figs. 1 and 3 comprises a frame 2 having bearings for a rotary shaft l which carries a toothed cutter 6 and the usual shield 8. Positioned at the end of the cutter is a guide member 10 constructed for engagement avith the lateral surface of a last, as (1, adjacent to the edge of the heel seat to guide the last in its turning movement during the operation of trimming around the edge of the heel portion of the insole Z), this guide member having a lip 12 to project between the bottom of the last and the insole for the purpose of positioning the last axially of the cutter and supporting the insole out of contact with the last adjacent to the point of operationof the cutter, as Well as preventing any possible engagement of the cutter with the last. The guide member 10 is mounted adjustably in a support 14-. which is pivoted to the frame 2 at 16 to permit the member to be swung away from the cutter when it is desired to remove the cutter from its shaft. Mounted upon the shaft 4: also to rotate therewith is a presser member 18 which is movable lengthwise of the shaft nd during the trimming operation is held by means of a light spring 20 against the insole adjacent to the point of cut to assist in preventing the insole from bending away from the cutter. This member is preferably formed as a spider with its arms 21 extending inwardly between the teeth of the cutter (see Fig. 3) and across the edge of the insole being trimmed. The spider arms 21 are flat where they cross the insole edges, and thus support it over a considerable distance back from the edge. They merge in the rim 23 which slopes away from the member 12. A wedge-shaped aperture is thus formed in which the insole is presented. A collar 22 secured to the shaftby a screw 24 that projects through a slot 26 in a sleeve 28 extending from the member 18 serves as an abutment for the spring 20 and by engagement with the inturned 'end of the sleeve determines the idle position of the presser member 18 so as to permlt the insole to force the member back slightly in opposition to the spring 20 when the insole is presented to the cutter. The effecting of this backward movement is facilitated by the rapid rotation of the member 18, which causes it to ride up on the insole, and by the fact that it slides parallel to the axis of the cutter, so that the pressure exerted by the insole upon it is utilized to the best advantage.

Secured upon one side of the lower portion of the frame 2 is a bracket 30 provided with a horizontal arm 32 upon which the work support of the machine is mounted. This arm is provided at its outer end with a bearing 33 for the reception of a stem 34 which projects from a block 36. The block 36 is thus permitted to turn with reference to the arm 32 within limits determined by a stop 38 upon the arm with which the block is arranged to engage. Projecting from the block 36 at right angles to the stem 34 is a rod 40 which provides a bearing for the upwardly extending arm 42 of the work support. Mounted upon the upper end of the arm 42 isa head 44 havin a stem 46 which engages in a bore in an 0%set portion of the arm so that the head may turn to alimited extent in a plane transverse to the arm. The head 44 has depending therefrom a pin 48, Fig. 6, which enters a recess 50 formed in the upper end of the arm 42, and threaded through the arm at opposite sides are screws 52 the inner ends of which extend into the recess 50 and serve by engagement with the pin 48 to limit adjustably the turning movement of the head 44 in both directions about the axis of the stem 46. The purpose of such turning movement of the head 44 will be hereinafter explained.

Secured in a bore in the head 44 is a sleeve 54 through which extends a spindle 56 the forward end portion of which is arranged to enter the last pin socket of a last as shown in Fig. 2. The spindle 56 is free both to move endwise and to turn within the sleeve. The sleeve 54 is extended at one side of the head to provide a bearing for a bracket 58 which is mounted thereon for rotation about the axis of the spindle 56, the sleeve having a flange 59 at its outer end to retain the bracket in position thereon, as shown in dotted lines in Fig. 2. Se cured to the spindle 56 at a distance from its forward end is a plate 60 which is formed with grooves 62 to provide a slideway for a pair of last positioning members 64, these members being movable upon the slideway toward and from the spindle 56. The mem bers 64 comprise a pair of jaws arranged for engagement with the sides of the neck portion of a last to assist in maintaining the last firmly in position upon its support. Pivoted on one side of the plate 60 are bellcrank levers 66 in one arm of each of which is formed a slot for the reception of a pin 68 which projects from the corresponding jaw 64, as shown in Fig. 2. A spring 70 is connected to the levers 66 in such manner as to cause the jaws 64 to be separated as far as permitted by pins 72, the outer ends of which are seen in Fig. 2, these pins projecting at their inner ends in position to be engaged by the jaws 64 in thelr outward movement, as will be readily understood. The other arms of the levers 66 project inwardly in position to be engaged by the neck of the last when the last is mounted upon the spindle. It will thus be seen that when a last is mounted upon the spindle and is moved to cause the spindle to approach the bottom of the last pin socket, the levers 66 will be engaged by the last and swung about their pivots, thus causing the jaws 64 to slide inwardly and make firm contact with the sides of the neck portion of the last so as to prevent the last from tipping and assist in maintaining it in fixed relation to the spindle during the trimming operation.

From a consideration of the construction as thus far described it will be seen that after a last has been positioned upon the forward end portion of the spindle 56, endwise movement of the spindle, which carries the other portions of the last support including the plate 60 and the jaws 64, will serve to efiect displacement of the last transversely of the plane of its heel seat portion, and during such movement the last is carried from or toward the bracket 58 which is restrained from similar movement by the head 44 and the flanged end 59 of the sleeve 54. Extending from the plate 60 are pins 74 which are arranged for sliding engagement in recesses in the bracket 58 as the plate is moved toward or from the bracket by endwise movement of the spindle 56, this arrangement serving to maintain the bracket 58 and the last support in the same angular relation with reference to rotation about the axis of the spindle 56 so that the bracket and the support must rotate in unison.

The means for clamping the insole upon the last comprises mechanism mounted upon the bracket 58, and including a. member 76 -which is arranged for sliding movement in substantially parallel relation to the spindle 56. Secured upon the slide 76 by means of a thumb screw 7 8 is an arm 80 which is formed to extend down the side of the last forwardly of the heel portion and is bent to extend inwardly over the last bottom to substantially the longitudinal median line of the last. This arm carries a. clamp member 82 which extends therefrom toward the rear of the heel seat and has a plurality of pointed pins 84 for effecting secure engagement with the insole. The member 82' is formed of slightly resilient material and is inclined somewhat with reference to the plane of the last bottom, as shown in Fig. 3, so as to permit the clamping device to be manipulated readily notwithstanding slight variations in the thickness of different insoles or the height of different lasts. By means of a screw and slot connection 86 the clamp member is adjustable with reference to the arm 80 to vary the position of its insole engaging portion with reference'to the rear end of the heel seat, particularly for the purpose of accommodating the device to lasts of different styles and sizes. The arm 80 has a. slot 88 in which is received a projection 90 of the slide 76 to maintain the arm in the same angular relation to the slide and permit the arm to be adjusted lengthwise of the slide to adapt the device for considerable variations in the height of different styles or sizes of lasts. Pivoted at 92 upon the bracket 58 is a lever 94, the opposite end portions'of which are connected by means of links 96 and 98 respectively with the slide 76 and the plate (30 of the last support. It will be readily seen that with this arrangement endwise movement of the spindle 56 in either direction will cause the slide 7 6 and the clamp member 82 to move in the opposite direction. A spring 100 connected at one end to the slide 76 and at its other end to a portion of the bracket 58, as seen in Fig. 4-, tends to maintain the clamping device and the last support in positions in which the clamp member 82 is relatively remote from the end of the spindle 56 so as to permit a last to be readily mounted upon thespindle without interference from the clamp member.

The operating means for effecting the clamping of the insole comprises a lever 10% pivoted at 102 to the head l1, and connected by links 106 with a bar 108 which is mounted loosely upon the spindle 56' between collars 110 on the spindle. Between the bar and the forward collar 110 is a ball bearing 112 which is arranged to facilitate the rotation of the spindle through the turning movement of the last when the lever is held in position to effect the clamping of the insole. \Vith this device the operator can readily effect with one hand such relative movement of the last support and the clamp member as to clamp the heel portion of the insole securely in position upon the last and position the last firmly upon its support for the trimming operation. A grip member 11 i on the head 44: assists the operator in operating the lever and in maintaining it in position to clamp the work while the work positioning means, including the last support and the clamping device, are rotated through the turning movement of the last which is effected by the other hand of the operator.

In order to maintain the work positioning means when idle in a position convenient for parts which the reception of a last, the bracket'58 is protween the members 6% while holding the last by the .forepart in the usual manner. In order to prevent the bracket 58 and the are rotatable therewith from swingingunduly upon the removal of a last from the spindle and further to insure that the last support shall be maintaind in a position convenient for the reception of a last, the head as is provided with a slot 118 and the pins 7 at are of such length that their end portions are caused to enter this slot as the'last support moves toward the bracket under the influence of the spring 100. Should the bracket start to swing when the work is removed, the pins will readily engage in the slot 118 and lock the bracket against further movement until it has been released by the manipulation of the lever 10%.

It will be seen that by reason of the arrangement of the rods or spindles 34: and 40 the work support is afforded a substantially universal swinging movementto facilitate the presentation of the work to the machine and that the weight of the support will tend to swing it toward the front and toward one side-of. the machine about the respective axes 40 and 31. In order par? tially to counterbalance the support and assist in presenting the work to the machine, the arm 4C2 hasan extension .120 which projects rearwardly and to the opposite side with reference to the respective axes 40 and 34: and'carries a plunger 122 which is an ranged to engage the lower side of the arm and is operated by a spring 124: so as partially to counterbalance the work support in its tendency to swing both toward the front and the side of the machine. The tension of the spring 12a may be varied by means of a screw 1.26.

In addition to the substantially universal swinging movement of the work support, by reason of the manner in which the arm 42 is mounted upon the supporting bracket 32, the

'bottom on lasts of diflerent shapes.

It will 'be evident from the preceding description that the operator may manipulate the work support to carry the work toward or from position to be operated upon by the machine and may also manipulate the lever 104 to effect the clamping or releaslngof the insole by the use of one hand, thus affording him the free use of his other hand to mount the last upon the support or to remove it therefrom and to turn the last to cause the cutter to trim around the heel seat. With the parts in their idle positions it is only necessary, in order to position the work, to mount a last upon the end of the spindle 56 and to swing the lever 104.- toward the grip member 1 14:, thus moving the last toward the clamp member 82 and simultaneously movin this member toward the last bottom to eifi'ect the clamping of the insole. As pressure is applied upon the insole by the member 82, the last will be forced farther inward upon the spindle and the jaws 64, through the operation of the levers 66, will be caused to press upon the neck of the last at opposite sides to hold it firmly in position. Movement of the lever simultaneously unlocks the bracket 58 by withdrawing the ends of the pins 74 from the slot 118, as previously explained. The operator then swings the work support to carry the insole toward the cutter, this swinging movement being assisted by the operation of the spring plunger 122. When the parts have been positioned in operative relation to the cutter, as shown in Fig. 3, the last is turned to cause the cutter to operate around the heel seat upon all portions of the edge of the insole which it is required to trim, the last support and the clamp member and their connections, together with the bracket 58, being arranged to turn with the last, and relatively to the lever 104;, in the manner previously explained. When the support is swung away from the cutter and the lever 10 i is released, the spring 100 immediately returns the parts to their idle positions, thus releasing the work andpermitting the last to be removed from the spindle.

It will be seen by'reference to Fig. 3 that the presser member 18 constructed and positioned as shown and described presents no obstruction to the clamping device during the manipulation of the work and by pressure upon the insole adjacent to the point of cut assists in preventing the insole from being deflected by the cutter. The extremely efiicient performance of the structure described is due to the fact that the spider arms are flat and extend across the extreme edge of the insole, and thus support the edge itself, rather than some portion adjacent to the edge. The fact that the spider arms extend between the cutter teeth is also very important in relation to the support afforded by the spider. The insole edge near the cutter is thus su ported directly opposite the cutter on one side, and directly adjacent to and on both sides of each cutter tooth on its other side.

The rapid rotation of the spider is also very instrumental in eifecting the desired result. It is well known that the friction of impending slipping is much greater than that of rapid slipping (as is illustrated, for example, bythe drive wheels of a stalled railroad locomotive). When a stationary presser member is used, as was the case prior to the present invention, the work passes over the presser member very slowly, and a rapid succession of small jerks of starting and stopping takes place, with a great deal of friction, which assists the pressure of the cutter in distorting the insole. \Vith the machine of the present invention, however, the presser member moves rapidly and smoothly over the insole, with the generation of very little friction.

It will also be readily understood that the arm 80 and other portions of the clamping device constructed as shown and described oppose no obstruction to the cutter in performing the usual trimming operation required in order to conform the heel portion of the insole to the contour of the edges of the heel seat of the last.

Although the invention has been disclosed as embodied in mechanism having the details of construction shown and described, it will be understood that the invention is not thus limited in its application but is susceptible of various embodiments within the spirit and scope of the appended claims.

The novel work support shown and described herein is claimed in our application Ser. No. 35,816, filed June 23, 1915, of which this application is a division, and is therefore not claimed herein.

Having described our invention, what we claim as new and desire to secure by Letters Patent of the United States is 1. In a machine of the class described, a cutter, a device located adjacent to the cutter to extend between the bottom of a last and an insole thereon to support the insole over a substantial area near the point of operation of the cutter, and means extending across the edge of the insole in contact therewith over a substantial peripheral area along the edge at the point of cut to support it sufliciently close to the point of operation of the cutter to hold it against any tendency to bend away from the cutter.

2. In a machine of the class described, a cutter, gaging means for the cutter constructed to engage the sides of a last, a device located adjacent to the cutter to extend between the bottom of a last and an insole thereon, and means extending across the edge of the insole and contacting flatly Wlth it over a substantial distance, constructed and arranged to support it suiticiently close to the point of operation of the cutter to hold it against any tendency to bend outof the plane of the cutter.

3. In a machine of the class described, a rotating cutter, uiding means to engage the sides of a last tor properly positioning an insole on it relative to the cutter, a rotating device located adjacent to the cutter to extend between the bottom of a last and the insole and to support that side of the insole which faces the last, over a substantial peripheral distance, and rotating means extending across the edge of the insole in contact with it over a substantial peripheral distance to support it suiiiciently close to the point of operation of the cutter to hold it against any tendency to bend away from the cutter.

4. A machine for trimming an insole attached to the bottom of a last comprising, in combination, a toothed cutter, means for holding the insole away from the bottom of the last in position to be trimmed by the cutter, and rotating means located between the teeth of the cutter and extending across the edge of the insole and in contact with the insole throughout a substantial area back of the edge of the insole and cooperating with the holding means to overcome any tendency in the insole to bend away from the cutter.

5. In a machine for trimming an insole attached to a last, a rotating toothed cutter, means for protecting the last from the cutter and means extending across the edge of the insole and in contact with the insole edge on both sides over a substantial peripheral distance for supporting both sides of the insole edge between the cutter teeth arranged to prevent distortion of that part of the insole in the neighborhood of the point of operation of the cutter.

6. A machine for trimming an insole attached to the bottom of a last comprising a cutter, means for holding the insole away from the bottom of the last, a shield lor the cutter in substantial alinement with the insole-contacting portion of said means, said means and shield supporting the upper edge of the insole heel over a substantial peripheral and radial distance including the edge near the point of operation of the cutter, and a member extending across the edge of the insole on the lower side, supporting the lower edge over a substantial width in 006pcration with the said means and shield, and overcoming any tendency in the insole to be deformed by the pressure of the cutter.

7. A machine for trimming an insole at tached to the bottom of a last comprising a cutter, means for holding the insole away from the bottom of the last in position to be trimmed by the cutter and supporting the upper side of the insole over a substantial extent near the point of operation of the cutter, a shield for the cutter loeating the upper edge of the insole in the angle between the lip and bed of the cutter and supporting said edge near the point of operation of the cutter, and a member extending across the edge of the insole on its bottom face, supporting it over a substantial width and cooperating with the said means and shield to hold the insole against curling under the cutter pressure.

8. In a machine for trimming an insole attached to a last, a cutter having a conical periphery arranged to form a bevel on the heel edge of the insole, means for holding the insole away from the last in position to be trimmed by the cutter and a member extending across the edge of the insole and arranged to support the edge of the insole against the pressure of the cutter, said member being constructed and arranged to be movable parallel to the axis of the cutter by the insertion of the work, and to press against the lower face of the insole irrespective of its thickness.

9. In a machine for trimming an insole attached to a last, a guide arranged to locate the last to regulate the depth of out, a cutter having a conical periphery arranged to form a bevel on the heel edge of the insole, means for holding the insole away from the last in position to be trimmed by the cutter and a member extending across the edge of the insole and arranged to support the edge of the insole against the pressure of the cutter, said member being constructed and arranged to be movable parallel to the axis of the cutter by the insertion of the work, and to press against the lower face of the insole irrespective of its thickness.

10. In a machine for trimming an insole attached to a last, a cutter, means supporting the insole sufficiently close to the point of operation of the cutter to hold it against bending away from the cutter, and a work support comprising a member engaging the insole remote from the point of operation of the cutter and arranged to clamp the insole on the last.

11. In a machine for trimming an insole attached to a last, a cutter, means supporting both sides of the insole sufficiently close to the point of operation of the cutter to hold it against bending away from the cutter, and a work support comprising a member engaging the insole remote from the point of operation of the cutter and arranged to clamp the insole on the last with sufficient firmness to resist the drag of the cutter and the supporting means.

12. In a machine for trimming an insole 7 eration of the cutter and arranged to clamp the insole on the last.

13. In a machine for trimming an insole attached to a last, a cutter, a member arranged to contact with the edge of the insole near the point of operation of the cutter and to support it against any tendency to bend away from the cutter, and a Work support arranged to present the insole to the cutter comprising a clamping member movable with the last, and arranged to contact with the heel seat of the insole remote from the edge and to hold it firmly on the last in opposition to. the drag of the trimming and supporting means.

14. In a machine for trimming an insole attached to a last, a cutter, a guide arranged to contact with the side of the last, means for extending between the bottom of the last and the insole, means cooperating therewith to grasp and prevent distortion or" the insole during the trimming operation, and a work support constructed and arranged to present the last and attached insole to the guide and cutter respectively and comprising a swinging head having means for engaging the cone of the last and a member arranged to be movable relatively to the last to clamp the insole firmly thereon, and to rotate with the last and head as the work support presents the insole to the cutter in desired positions.

15. In a machine for trimming an insole attached to a last, the combination with a rotary toothed cutter, of means for supporting the last for turning movement to permit the edge of the insole around the heel seat to be presented to the cutter, said supporting means including a device for engaging the insole substantially centrally on the heel seat portion to clamp it against the last while leaving the margin of the insole free to be lifted from the bottom of the last, work positioning means comprising a member arranged to extend between the bottom of the last and the insole to support the margin of the insole out of contact with the last for the trimming operation, and a device mounted for rotation with the cutter to press the marginal edge of the insole yieldingly toward said member adjacent to the point of cut during the trimming operation.

In testimony whereof we, the said MAY E. BROWN and the said ALBERT A. MAOLEOD, have signed our names to this specification.

MAY E. BROWN, Administmzfm'w 0 f the estate 0 f Lam's M.

Brown, deceased.

ALBERT A. MAOLEOD.

Copies of thispatent may be obtained for five cents each, by addressing the Commissioner of, Patents, Washington, D. G. 

